Finding the Fourth Proportional to 571,342.16, 788,490.12 and 316,704.08
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Solution
The fourth proportional to 571,342.16, 788,490.12 and 316,704.08 is: 437,072.66
Step by Step Solution
- Step 1: Write the proportion equation
571,342.16 : 788,490.12 = 316,704.08 : x - Step 2: Convert to fraction form
571,342.16/788,490.12 = 316,704.08/x - Step 3: Cross multiply
571,342.16x = 788,490.12 × 316,704.08 - Step 4: Simplify right side
571,342.16x = 249,718,038,043.69 - Step 5: Solve for x
x = 249,718,038,043.69/571,342.16 - Step 6: Final answer
x = 437,072.66
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.